2025 Compare Cities People:
Killingly, CT vs Sioux City, IA

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Highlights
- Sioux City is 0% more densely populated than Killingly.
- People are 0.2% less likely to be married in Sioux City.
- The Median Age is 7.4 years younger in Sioux City.
 Killingly, CTSioux City, IAUnited States
 Population  Unlock85,081329,725,481
 Female Population52.9%  Unlock50.5%
 Male Population47.1%  Unlock49.5%
 Median Age  Unlock34.838.4
 space3
 Population - 201017,383  Unlock309,327,143
 Population - 2000  Unlock85,013285,036,114
 Population - 199015,889  Unlock251,960,433
 Pop. 2000 to Now  Unlock-2.7%15.6%
 Pop. 1990 to Now8.9%  Unlock30.8%
 space4
 Population Density  Unlock1,455.793.4
 Land Area48.4  Unlock3,531,905.4
 Water Area  Unlock1.2264,836.8
 space
 Est. Total Population By Age
 Killingly, CTSioux City, IAUnited States
 Age 0 to 44.8%  Unlock5.9%
 Age 5 to 9  Unlock7.5%6.1%
 Age 10 to 145.8%  Unlock6.6%
 Age 15 to 17  Unlock4.4%3.9%
 Age 18 to 202.7%  Unlock4.0%
 Age 21 to 24  Unlock5.7%5.2%
 Age 25 to 3411.9%  Unlock13.8%
 Age 35 to 44  Unlock12.4%12.9%
 Age 45 to 5414.3%  Unlock12.6%
 Age 55 to 59  Unlock6.0%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock8.4%9.6%
 Age 75 to 844.9%  Unlock4.5%
 Age 85 and over  Unlock1.6%1.9%
 space1
 Race
 Killingly, CTSioux City, IAUnited States
 White88.6%  Unlock59.4%
 Black  Unlock4.5%12.2%
 Asian0.8%  Unlock5.6%
 Native American  Unlock1.8%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races3.2%  Unlock3.2%
 Hispanic  Unlock20.9%18.4%
 space2
 Marriage & Family
 Killingly, CTSioux City, IAUnited States
 Married Population47.2%  Unlock49.8%
     Currently Married  Unlock45.1%48.0%
 Married but Separated2.1%  Unlock1.8%
 Single Population  Unlock52.9%50.2%
 Never Married30.7%  Unlock33.8%
 Divorced  Unlock12.0%10.8%
 Widowed7.8%  Unlock5.6%
 space5
 Household Size  Unlock2.572.60
 Households7,099  Unlock124,010,992
 Family Households  Unlock20,17580,755,759
     Married couple, w/children19.6%  Unlock30.5%
     Married couple, no children  Unlock36.9%42.9%
 Non Family Households2,636  Unlock43,255,233
     Single householder, w/children  Unlock24.0%15.8%
     Single householder, no children11.9%  Unlock10.8%
Reviews for Killingly    3 Reviews

Over 5 years ago

This is a nasty, vile, racist town that would rather elect a well known White Nationalist racist to the school board than change their racist school name. People in town  More

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Over 11 years ago

Killingly is in my opinion not a great place to live anymore, the cost of living is to high. Most jobs in town are now low paying retail. We use to have mill/factory  More

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Over 17 years ago

I have lived in Northeastern Ct. for a good part of my life and in Killingly for most of it. I think the quality of life is good there and the community keeps up with  More

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Reviews for Sioux City    12 Reviews

Over 7 years ago

I’ve been here only 4 months and I’m still shocked at how people behave. Not friendly, rude. Can’t tell you how many businesses I’ve been in to where the reception staff  More

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Climate in winter ranges from 10-15 degrees to 85+ in the summer 7% sale tax population @75,000, economy ok  More

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Over 14 years ago

Sioux City is an amazing place. Low crime rate, Great Schools, Great People, Most People are friendly and Polite. Just an overall great place to live!!!!!!!!!!!   More

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